mandela nelson mandela ♪ >> reporter: nelson mandela, nelson mandela, there's no one like you. >> gave hope to the world. >> reporter: this morning, archbishop desmond tutu leading those around the world and in capetown in prayer for mandela. >> thank you for the gift of man de -- madiba. . >> reporter: today south africans paid tribute to father as they call him with makeshift memorials. december 5th now marks the day of south african's deepest sorrow. but it's also a day that the country's president said should mark their greatest determination to continue nelson mandela's legacy. >> to live as madiba has lived, to strive as he has strived and to not rest until we have realized his vision of a truly united south africa. >> reporter: many south africans today, there's a bittersweet sense, they're relieved that he's not suffering but they're sad that this man who created this nation has gone. when i think of it, when i talk to people, the two phrases that keep on coming up, all they're saying, all people here are saying is thank you and good-bye. >> robyn, thanks so much with starting